Cotton Business Cards by MOO - Eco-friendly & recycled business cards
ContactRescue - Magically get your address book up-to-date and accurate
Shake Business Cards - The new way to share your LinkedIn, email and phone details
Cardhop - The Mac contacts app you'll want to use.
Namecheap Business Card Maker - Create and order business cards in minutes
Clearbit Connect - Clearbit Connect is a free extension that surfaces actionable information on the people who email you.